Jake Gyllenhaal is the latest celeb to guest star on Bear Gryll's Man vs. Wild on The Discovery Channel.

Gyllenhaal's episode is the season premiere, and the two will hit up Iceland, showing viewers how to survive in the cold.

Like Will Ferrell before him, Jake seems to be bringing some humor to the survival show. Bear instructs Jake to spell out "help" in the snow, saying: "Make a big letter 'H.'" Jake's response: "Lower case or upper case?"

Love it! Re-live Will Ferrell's episode in the hilarious promo for it after the jump!